We need a PG and SF, and there are a lot that would fit really well (Sessions, Beasley etc.)

But, what we ALSO need is a back-up SG and a back-up C.

Regarding the Big, two players come to mind: Chris Anderson from Denver, whom they're trying to move or Kyrylo Fesenko (Huge Dude, FA, very good defender). Chris Anderson could be had straight up for a guy like Josh McRoberts perhaps, and would be a better fit in LA, and with his crazy style and energy could be a fan favorite. Regarding Fesenko: According to Hollinger

The best-kept secret in the NBA right now is Fesenko's monstrous defensive stats.

, and currently he could be had at a minimum contract.

Back-up 2: I think we could make a run at Raja Bell. He is old, tough, can shoot 3s defend, and is unhappy as a starter in Utah. Also, playing next to Goudelock he would be good, as a spot up 3 pt shooter/defender. Utah needs a PG - perhaps trade them Steve Blake. Especially if we get a new starting PG.

Its not like he is going to play any more than 10 mins per night, and if we had a real scoring option coming off the bench, Fesenko would be good value because of his very good defensive capabilities. Right now, we need either Bynum or Gasol to play with the second unit, if we are to avoid opposing teams from scoring against Murphy and McRoberts.

To quote Hollinger, again:

Last season the Jazz were an eye-popping 11.91 points per 100 possessions better on defense with Fesenko on the floor, and this is not a new trend. The season before it was 8.67; in limited minutes his first two seasons he also had a strong differential.

Synergy Stats, meanwhile, rated Fesenko as the second-best defender in the entire league among players who faced at least 150 opponent plays; the season before he was first. And according to 82games.com, opposing centers had a PER of just 10.4 against him; the season before it was 12.9.